POST-FUSER COPY SHEET DECURLER
Original Publication Date: 1984-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Xerox Disclosure Journal
The fuser assembly 54, as shown in the figure comprises a centrally heated roll 56 which is supported above a pressure roll 58. To fuse the toner images carried by the copy sheets, the sheets are moved through the nip 62 formed between the two rolls such that the images contact the heated roll. A plurality of stripper fingers 64 (only one of which is shown) are provided to remove the copy sheets from the pressure roll. The fingers are preferably fabricated from a resin material such as Teflon (a trademark of E. I. duPont). The tips of the fingers touch the surface of the pressure roll at approximately 1/8 of an inch from the nip 62 and the fingers are disposed at an angle of 35 degrees relative to a plane tangent to the pressure roll surface in the area of the nip. The purpose of such positioning of the fingers is so that they can effect a reverse bending of the copy sheets, such bending being in the direction opposite to that caused by the pressure roll. This reverse bending has the effect of straightening out the copy sheets to thereby substantialiy reduce or eliminate objectionable curl.